The Rila Monastery is the largest and most famous Eastern Orthodox monastery in Bulgaria. It is also called as Monastery of Saint Ivan of Rila or Rilski manastir. It is situated in the northwestern Rila Mountains, 117 km or 73 mi south of the capital Sofia in the deep valley of the Rilska River at an elevation of 1,147 m or 3,763 ft above sea level. The monastery is named after the famous Bulgaria saint and hermit Ivan of Rila.